10999087124 has 6 divisors (see below), whose sum is σ = 19248402474. Its totient is φ = 5499543560.

The previous prime is 10999087123. The next prime is 10999087181. The reversal of 10999087124 is 42178099901.

It can be written as a sum of positive squares in only one way, i.e., 8085246724 + 2913840400 = 89918^2 + 53980^2 .

It is a super-2 number, since 2×10999087124² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10999087123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1374885887 + ... + 1374885894.

It is an arithmetic number, because the mean of its divisors is an integer number (3208067079).

Almost surely, 2^10999087124 is an apocalyptic number.

It is an amenable number.

10999087124 is a deficient number, since it is larger than the sum of its proper divisors (8249315350).

10999087124 is a wasteful number, since it uses less digits than its factorization.

10999087124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2749771785 (or 2749771783 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 50.

The spelling of 10999087124 in words is "ten billion, nine hundred ninety-nine million, eighty-seven thousand, one hundred twenty-four".